公开(公告)号：US20240194923A1

公开(公告)日：2024-06-13

申请号：US18076829

申请日：2022-12-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruichun Jiang ,  Wenbin Gu ,  Matthew J. Beutel

IPC: H01M8/242 ,  H01M8/1004 ,  H01M8/1044

CPC classification number: H01M8/242 ,  H01M8/1004 ,  H01M8/1044 ,  H01M2008/1095

Abstract: A system for a fuel-cell subgasket active area edge with through-plane proton conduction is provided. The system includes a fuel-cell membrane-subgasket assembly. The assembly includes an active area including a proton exchange membrane and a first portion of a transitional proton-conductive material attached to the proton exchange membrane. The assembly further includes a non-active subgasket boundary surrounding the active area, configured for preventing a flow of gaseous material and liquid material therethrough. The non-active subgasket boundary includes a non-conductive subgasket and a second portion of the transitional proton-conductive material attached to the subgasket.

公开(公告)号：US20240079611A1

公开(公告)日：2024-03-07

申请号：US17902193

申请日：2022-09-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruichun Jiang ,  Michael Sweet ,  Kathryn L. Stevick ,  Burl B. Keel ,  Jackie Mara

IPC: H01M8/0286 ,  H01M8/0273 ,  H01M8/1004

CPC classification number: H01M8/0286 ,  H01M8/0273 ,  H01M8/1004

Abstract: Presented are systems for manufacturing membrane electrode assemblies for fuel cells, control logic for operating such systems, methods for making such MEAs, and fuel cell systems employing such MEAs. A method of manufacturing a membrane electrode assembly (MEA) for a fuel cell system includes receiving a standalone membrane (SAM) with a semipermeable proton-exchange membrane having opposing first and second faces and a backing layer attached to the first face. A SAM may be characterized by a lack of cathode and anode electrodes upon receipt of the membrane. The second face of the SAM is placed across a vacuum plate; the vacuum plate applies a predefined vacuum pressure to the SAM. While vacuum pressure is being applied to the SAM by the vacuum plate, the backing layer is removed from the SAM. A subgasket is then attached to the first face of the SAM after the backing layer is removed.

公开(公告)号：US20140120458A1

公开(公告)日：2014-05-01

申请号：US13833304

申请日：2013-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruichun Jiang ,  Matthew Dioguardi ,  Scott C. Moose ,  Craig Gittleman ,  John P. Healy ,  Bradley M. Houghtaling

IPC: H01M4/88 ,  H01M8/10

CPC classification number: H01M4/8828 ,  H01M4/8807 ,  H01M8/1004 ,  Y02E60/521

Abstract: Disclosed are methods for fabricating a reinforced membrane electrode assembly having one or more freestanding external reinforcement layers. The method comprises providing a freestanding external reinforcement layer, and depositing a catalyst solution and membrane solution onto at least a portion of the freestanding external reinforcement layer.

Abstract translation: 公开了用于制造具有一个或多个独立外部加强层的增强膜电极组件的方法。 该方法包括提供独立的外部加强层，以及将催化剂溶液和膜溶液沉积在独立的外部增强层的至少一部分上。

公开(公告)号：US20240170703A1

公开(公告)日：2024-05-23

申请号：US17988891

申请日：2022-11-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruichun Jiang ,  Zhongyi Liu ,  Nicholas P.W. Pieczonka

IPC: H01M8/1004

CPC classification number: H01M8/1004 ,  H01M2008/1095

Abstract: Membrane electrode assemblies for fuel cells and components thereof are provided. In one example, a membrane electrode assembly includes a generally planar gas-permeable body having opposed first and second faces defining in-plane directions and a through-plane direction, a side face extending about an outer perimeter of the body and adjoining each of the first and second faces, and an active region bounded in the through-plane direction by the first and second faces and in the in-plane directions by an active region perimeter defined generally within the outer perimeter. The active region includes a distribution of a composite compound additive dispersed across at least one of the in-plane and through-plane directions. The composite compound additive includes a metal oxide-containing sub-compound and a tungsten-containing sub-compound.

公开(公告)号：US09553327B2

公开(公告)日：2017-01-24

申请号：US14586132

申请日：2014-12-30

Applicant: GM Global Technology Operations LLC

Inventor： Timothy J. Fuller ,  Ruichun Jiang

IPC: H01M8/10 ,  C08J9/22 ,  H01M8/04 ,  C08J9/224

CPC classification number: H01M8/1088 ,  C08J5/2293 ,  C08J9/224 ,  C08J2327/18 ,  H01M8/04141 ,  H01M8/04149 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1044 ,  H01M8/1067 ,  H01M2008/1095 ,  Y02P70/56

Abstract: A method for forming a modified solid polymer includes a step of contacting a solid fluorinated polymer with a sodium sodium-naphthalenide solution to form a treated fluorinated solid polymer. The treated fluorinated solid polymer is contacted with carbon dioxide, sulfur dioxide, or sulfur trioxide to form a solid grafted fluorinated polymer. Characteristically, the grafted fluorinated polymer includes appended CO2H or SO2H or SO3H groups. The solid grafted fluorinated polymer is advantageously incorporated into a fuel cell as part of the ion-conducting membrane or a water transport membrane in a humidifier.

Abstract translation: 形成改性固体聚合物的方法包括使固体氟化聚合物与钠 - 钠盐溶液接触以形成经处理的氟化固体聚合物的步骤。 处理的氟化固体聚合物与二氧化碳，二氧化硫或三氧化硫接触以形成固体接枝的氟化聚合物。 特征在于接枝氟化聚合物包括附加的CO 2 H或SO 2 H或SO 3 H基团。 固体接枝氟化聚合物有利地作为离子导电膜的一部分或在加湿器中的水输送膜结合到燃料电池中。

公开(公告)号：US11038189B2

公开(公告)日：2021-06-15

申请号：US16410584

申请日：2019-05-13

Applicant: GM Global Technology Operations LLC

Inventor： Ruichun Jiang ,  Frank D. Coms ,  Timothy J. Fuller

IPC: H01M8/126 ,  H01M8/1004 ,  H01M8/1213 ,  H01M8/1253

Abstract: A membrane electrode assembly component for a fuel cell includes a generally planar gas-permeable body having opposed first and second faces defining in-plane and through-plane directions, a side face extending about an outer perimeter of the body and adjoining each of the first and second faces, and an active region bounded by the first and second faces and an active region perimeter defined generally within the outer perimeter. The active region includes a distribution of cerium-zirconium oxide nanofibers dispersed across at least one of the in-plane and through-plane directions, wherein the cerium-zirconium oxide nanofibers have a molecular formula of CexZryO4.

公开(公告)号：US09123963B2

公开(公告)日：2015-09-01

申请号：US13833304

申请日：2013-03-15

Applicant: GM Global Technology Operations LLC

Inventor： Ruichun Jiang ,  Matthew Dioguardi ,  Scott C. Moose ,  Craig Gittleman ,  John P. Healy ,  Bradley M. Houghtaling

IPC: H01M4/88 ,  H01M8/10

CPC classification number: H01M4/8828 ,  H01M4/8807 ,  H01M8/1004 ,  Y02E60/521

Abstract: Disclosed are methods for fabricating a reinforced membrane electrode assembly having one or more freestanding external reinforcement layers. The method comprises providing a freestanding external reinforcement layer, and depositing a catalyst solution and membrane solution onto at least a portion of the freestanding external reinforcement layer.

Abstract translation: 公开了用于制造具有一个或多个独立外部加强层的增强膜电极组件的方法。 该方法包括提供独立的外部加强层，以及将催化剂溶液和膜溶液沉积在独立的外部增强层的至少一部分上。